Linear Technology LTC1069-1CS8#PBF: Low Power, Elliptic Lowpass Filter

The LTC1069-1CS8#PBF is a high-performance, low power, elliptic lowpass filter integrated circuit designed by Linear Technology, now part of Analog Devices. This filter IC is an excellent choice for signal conditioning in a wide range of applications, including data acquisition systems, communication devices, and industrial control systems. Its primary function is to attenuate unwanted high-frequency noise and signals while allowing the desired signal bandwidth to pass through with minimal distortion.

Key Features:

• Filter Type: The LTC1069-1CS8#PBF is an 8th order lowpass filter with elliptic response characteristics, providing sharp cutoff and excellent selectivity.
• Operational Frequency: It is designed to operate at a fixed frequency or can be clocked by an external source, offering flexibility in various applications.
• Low Power Consumption: With a typical supply current of only 2.5mA, this device is optimized for low power applications, making it ideal for battery-powered devices.
• Single Supply Operation: It operates from a single 5V supply, simplifying power supply design and reducing system complexity.
• Package Type: Housed in an 8-pin narrow SOIC package (CS8), the LTC1069-1CS8#PBF is compact and suitable for space-constrained applications.

Performance Benefits:

The LTC1069-1CS8#PBF utilizes a switched-capacitor design, which allows for a stable and reliable filter performance without the need for external resistors or capacitors. This results in a simpler design and a reduction in board space. The IC's clock-tunable feature provides designers with the ability to adjust the filter's cutoff frequency, making it a versatile component for various signal processing requirements.

In addition to its excellent filtering capabilities, the LTC1069-1CS8#PBF offers a low harmonic distortion and a high signal-to-noise ratio, ensuring that the integrity of the signal is maintained through the filtering process. Its robust design also includes overvoltage protection on the input, providing an added layer of security for the IC and the overall system.

Applications:

With its precision filtering and low power operation, the LTC1069-1CS8#PBF is particularly well-suited for applications such as:

• Portable and battery-powered electronics
• Anti-aliasing for data acquisition systems
• Signal conditioning in telecommunications
• Audio processing equipment
• Industrial control systems

Overall, the LTC1069-1CS8#PBF from Linear Technology is a reliable and efficient solution for designers looking to improve signal quality while minimizing power consumption in their electronic designs.